//To get that info you must use the ASSOCIATORS OF WQL sentence to create a link between theWin32_DeviceMemoryAddress -> Win32_PnPEntity -> Win32_IRQResource classes.
 1         static void Main(string[] args)
 2         {
 3             foreach (ManagementObject Memory in new ManagementObjectSearcher(
 4                "select * from Win32_DeviceMemoryAddress").Get())
 5             {
 6 
 7                 Console.WriteLine("Address=" + Memory["Name"]);
 8                 // associate Memory addresses  with Pnp Devices
 9                 foreach (ManagementObject Pnp in new ManagementObjectSearcher(
10                     "ASSOCIATORS OF {Win32_DeviceMemoryAddress.StartingAddress='" + Memory["StartingAddress"] + "'} WHERE RESULTCLASS  = Win32_PnPEntity").Get())
11                 {
12                     Console.WriteLine("  Pnp Device =" + Pnp["Caption"]);
13 
14                     // associate Pnp Devices with IRQ
15                     foreach (ManagementObject IRQ in new ManagementObjectSearcher(
16                         "ASSOCIATORS OF {Win32_PnPEntity.DeviceID='" + Pnp["PNPDeviceID"] + "'} WHERE RESULTCLASS  = Win32_IRQResource").Get())
17                     {
18                         Console.WriteLine("    IRQ=" + IRQ["Name"]);
19                     }
20                 }
21 
22             }
23             Console.ReadLine();
24 
25         }